Hi Eric, HA! You are correct. In the scheme of things, the 26AH gel cells are not Large! (Most of the ones that I've used are in the 2-5A hour). Hence my indication that they are large! (Wish I had some 260AH)
Thanks for the info - I'll set it for the 'Non' selection. As these are small compared to a 'normal' sized battery, the main purpose is to let the repeater stay on line till we get up & turn on the generator. Most of the time, the outages are only for a short while, so they ought to work ok. Thanks again!! Tim --- In [email protected], "Eric Lemmon" <wb6...@...> wrote: > > Tim, > > A discussion on this topic was found on the Batlabs Batboard, and I have > excerpted two relevant paragraphs from separate posts: > > "From the Hardware screen, the RSS gives you four battery type choices: > None, Lead Acid-Linear, Lead Acid Non-linear, and NICAD. Use the Lead > Acid-Linear selection for flooded-cell lead acid batteries and the Lead Acid > Non-linear setting for gel cells. There is no setting for AGMs, but I've > been told by folks whose judgment I trust that, if your charger doesn't have > a specific curve for AGMs, you can use the flooded cell curve with no > significant impact on the batteries." > > "This might be enough info for you to calculate runtime. Here's a table from > power-sonic that might help. According to them, and in my experience, > Lead_Acid_Non will float a gel cell properly - 2.26 volts per cell. Linear > is for lead-antimony (flooded) cells - 2.21 volts per cell. Too low for > lead-calcium (gel cell, AGM, etc). Too low float voltage makes the plates > absorb water, and swell, and sulfate. So... It looks like the power supply > does produce the correct voltages for the listed battery types. 3.5 amp > current limit will take a long time to recharge a large battery - like a day > and a half for 100 AH like the one in the link. But, really, how often will > you take it to nothing?" > > The Quantar RSS manual 6881085E35-AJ mentions nothing about determining the > proper setting on the Battery Equalization screen. BTW, a 26 Ah gel cell is > hardly a "large" battery, since that rating is about 1/3 the size of a > typical car battery. Perchance, did you mean 260 Ah? > > 73, Eric Lemmon WB6FLY > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of tahrens301 > Sent: Sunday, July 26, 2009 2:56 PM > To: [email protected] > Subject: [Repeater-Builder] Quantar Battery Type Selection > > > > What type of battery should I choose in > the RSS Screen? > > Using a pair of large Gel Cells. 26AH each > > Lead Acid Linear > or > Lead Acid Non-Linear? > > thanks, > > Tim >
